Lately ocrmypdf keeps failing when I just wanna compress pdfs so had to do it without fail. Also to clean metadata was using ExifCleaner but didn't realize all metadata can be restored by doing exiftool -pdf-update:all= some.pdf.
qpdf does a decent job of compressing images and the linearize destroys the metadata that was stripped out so it can't be restored.
exiftool --list some.pdf will show pdf metadata
On Mac (cuz of stupid zsh)
metapdf=$(bash -c 'read -e -p "Input pdf filename to clean metadata and compress: " tmp; echo $tmp') && exiftool -all:all= $metapdf && qpdf --linearize --object-streams=generate $metapdf ${metapdf%.*}_cleaned.pdf
On Linux this should work
read -p "Input pdf filename to clean metadata and compress: " metapdf && exiftool -all:all= $metapdf && qpdf --linearize --object-streams=generate $metapdf ${metapdf%.*}_cleaned.pdf
Another way to compress pdfs is
ps2pdf in.pdf out.pdf but it's way too slow
On Linux I use MasterPDF Editor to crop pdfs but on Mac not sure what free app there is so resorted to online pdf croppers. Only free one I found that doesn't destroy bookmarks in the process was pdfmonk but gotta use it in Safari.
Lately ocrmypdf keeps failing when I just wanna compress pdfs so had to do it without fail. Also to clean metadata was using ExifCleaner but didn't realize all metadata can be restored by doing exiftool -pdf-update:all= some.pdf.
qpdf does a decent job of compressing images and the linearize destroys the metadata that was stripped out so it can't be restored.
exiftool --list some.pdf will show pdf metadata
On Mac (cuz of stupid zsh)
metapdf=$(bash -c 'read -e -p "Input pdf filename to clean metadata and compress: " tmp; echo $tmp') && exiftool -all:all= $metapdf && qpdf --linearize --object-streams=generate $metapdf ${metapdf%.*}_cleaned.pdf
On Linux this should work
read -p "Input pdf filename to clean metadata and compress: " metapdf && exiftool -all:all= $metapdf && qpdf --linearize --object-streams=generate $metapdf ${metapdf%.*}_cleaned.pdf
Another way to compress pdfs is
ps2pdf in.pdf out.pdf but it's way too slow
On Linux I use MasterPDF Editor to crop pdfs but on Mac not sure what free app there is so resorted to online pdf croppers. Only free one I found that doesn't destroy bookmarks in the process was pdfmonk but gotta use it in Safari.
BY GeekTips
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With the help of the Search Filters option, users can now filter search results by type. They can do that by using the new tabs: Media, Links, Files and others. Searches can be done based on the particular time period like by typing in the date or even “Yesterday”. If users type in the name of a person, group, channel or bot, an extra filter will be applied to the searches.
Telegram and Signal Havens for Right-Wing Extremists
Since the violent storming of Capitol Hill and subsequent ban of former U.S. President Donald Trump from Facebook and Twitter, the removal of Parler from Amazon’s servers, and the de-platforming of incendiary right-wing content, messaging services Telegram and Signal have seen a deluge of new users. In January alone, Telegram reported 90 million new accounts. Its founder, Pavel Durov, described this as “the largest digital migration in human history.” Signal reportedly doubled its user base to 40 million people and became the most downloaded app in 70 countries. The two services rely on encryption to protect the privacy of user communication, which has made them popular with protesters seeking to conceal their identities against repressive governments in places like Belarus, Hong Kong, and Iran. But the same encryption technology has also made them a favored communication tool for criminals and terrorist groups, including al Qaeda and the Islamic State.
